6
votes
Accepted
Helicoil installed from other side?
Well, I did it, and it was one of the most straightforward fixes possible. Here's what I did...
So I bought a cheap M6 1.0 kit for $27 NZD.
Clamp was secured in a drill vise so it wouldn't move. I ...
- 2,693
6
votes
Helicoil installed from other side?
You could partially enlarge the hole (where the tread stripped). Place a round steel nut into the enlarged part. You could also fix the nut with glue
- 8,063
5
votes
Helicoil installed from other side?
You comment that this is M6. Presumably M6×1. For a helicoil you'd need to run a 6.3 mm drill down there and then you'd be tapping to something like M7×1.
M7 screws are rare as ...
- 829
4
votes
Helicoil installed from other side?
You could take it to an engineering company and get them to fill the hole using a welder, then re-drill and tap to the original size if your helicoil doesn't work.
- 22.9k
4
votes
Helicoil installed from other side?
Can you live with ugly but strong?
You could put a longer bolt through if there were wedge-shaped shims on either side. You could cut and shape these just from some bar stock by hand - no precision ...
- 141
3
votes
Drilling through metal for broken bolt on rear suspension mount using a cobalt bit not working
Given the mess so far, I think you will have to remove the arm and set it up in a vice so the it can be drilled with a sharp bit at low speed and at a slow advance rate.
If that fails then you may ...
- 34.5k
3
votes
Drilling through metal for broken bolt on rear suspension mount using a cobalt bit not working
If the bolt is just needed to keep the brake cable from dangling around and has absolutely no critical function then I'd try to clamp the bracket (perhaps by some U-bolt) to the control arm and forget ...
- 8,063
3
votes
Helicoil installed from other side?
Get a quick-release skewer. Fit (grind) an angle on a thick aluminum washer so that the skewer applies correctly. Solder fitted washers to both sides of your clamp with argon welder. That'll be ...
- 31
3
votes
Helicoil installed from other side?
From what I read, it seems that primary problem in installing the helicoil from the wrong side is that the tang would be left on the entry side of the helicoil.
How about just installing the helicoil ...
- 131
3
votes
Helicoil installed from other side?
Your last paragraph sums up the problem exactly. The tang is usually either left or broken off at the very bottom of the hole and causes no problem as it is not normally reached by the bolt.
If you ...
- 34.5k
3
votes
Double-stacking thread-repair inserts (helicoils) in the same hole+thread?
I have never done stacked heli-coils but, I believe you may have an issue if there is a gap. the starting threads of the insert have to line up with the starting threads of the fastener. If the ...
- 19.9k
3
votes
Spark plug repair kit tap will not grip existing threads in spark plug hole
Are you sure the piston isn't in the road? If it was at TDC, it could be keeping the tap from biting into the metal.
If that fails, you might need to try a little more of a drastic measure. That'd be ...
- 148k
2
votes
Spark plug repair kit tap will not grip existing threads in spark plug hole
I have not used this system but from what I can see on their web site, it relies on the lower threads to engage and then pull the rest of the tool down into the material.
If there is not enough "...
- 12k
1
vote
Double-stacking thread-repair inserts (helicoils) in the same hole+thread?
The first few (3-5) threads hold about 80-90% (as a rule of thumb) of the force. Therefor a second helicoil offers only diminished returns. Most likely it isn't worth the effort and possible ...
- 8,063
1
vote
Double-stacking thread-repair inserts (helicoils) in the same hole+thread?
Before you put the coil in, cut it one thread more than what was hanging out. You said it had 4 threads hanging out, which means there will be about 5 to 6 threads once installed. I would cut off the ...
- 779
1
vote
Double-stacking thread-repair inserts (helicoils) in the same hole+thread?
No problem do not worry about a gap in the middle just don't put the bottom too close to the edge break out the Tang go ahead and feed the second one in if there's not enough room you have coils ...
1
vote
Accepted
Double-stacking thread-repair inserts (helicoils) in the same hole+thread?
You can "stack" heli-coil inserts. The threads you create in the hole it will be screwed into means the coils will line up in the threads, so the threads will all be in line, and the bolt ...
- 779
1
vote
Spark plug repair kit tap will not grip existing threads in spark plug hole
spark plug threads are not the same as metric or ase threads or pipe. they are a unique taper. A quality parts store will likely have access to the hole chaser tap you need so long as you take your ...
- 107
1
vote
Spark plug repair kit tap will not grip existing threads in spark plug hole
I just did this on a 2005 Grand Voyager, and had the same problem.
Using the OEMTOOLS 14mm Spark Plug Rethreader Kit from Autozone, I just kept applying as much pressure as I could until the tap ...
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